Abstract:
Methods, compositions, and systems are provided for characterization of modified nucleic acids. In certain preferred embodiments, single molecule sequencing methods are provided for identification of modified nucleotides within nucleic acid sequences. Modifications detectable by the methods provided herein include chemically modified bases, enzymatically modified bases, abasic sites, non-natural bases, secondary structures, and agents bound to a template nucleic acid.
Abstract:
Methods, compositions, and systems are provided for characterization of modified nucleic acids. In certain preferred embodiments, single molecule sequencing methods are provided for identification of modified nucleotides within nucleic acid sequences. Modifications detectable by the methods provided herein include chemically modified bases, enzymatically modified bases, abasic sites, non-natural bases, secondary structures, and agents bound to a template nucleic acid.
Abstract:
Methods, compositions and arrays for non-random loading of single analyte molecules into array structures are provided. Arrays of confined regions are produced wherein each confined region comprises a single island within the confined region. The island can be selectively functionalized with a coupling agent to couple a single molecule of interest within the confined region.
Abstract:
Methods and systems for real-time monitoring of optical signals from arrays of signal sources, and particularly optical signal sources that have spectrally different signal components. Systems include signal source arrays in optical communication with optical trains that direct excitation radiation to and emitted signals from such arrays and image the signals onto detector arrays, from which such signals may be subjected to additional processing.
Abstract:
Methods, compositions, and systems are provided for characterization of modified nucleic acids. In certain preferred embodiments, single molecule sequencing methods are provided for identification of modified nucleotides within nucleic acid sequences. Modifications detectable by the methods provided herein include chemically modified bases, enzymatically modified bases, abasic sites, non-natural bases, secondary structures, and agents bound to a template nucleic acid.
Abstract:
Methods of preparing nucleic acid templates and providing the nucleic acid templates to low copy number reaction volumes are provided. Related compositions of nucleic acid templates are also provided.
Abstract:
The present invention relates to preparation of nucleotide compositions and uses thereof for conducting nucleic acid analyses. The compositions and methods embodied in the present invention are particularly useful for nucleic acid analyses that require high-resolution detection of labeled nucleotides or labeled nucleic acid targets.
Abstract:
Systems and methods for analyzing highly multiplexed sample arrays using highly multiplexed, high density optical systems to illuminate high density sample arrays and/or provide detection and preferably confocal detection off signals emanating from such high density arrays. Systems and methods are applied in a variety of different analytical operations, including analysis of biological and biochemical reactions, including nucleic acid synthesis and derivation of sequence information from such synthesis.
Abstract:
Isolated and/or recombinant enzymes that include surface binding domains, surfaces with active enzymes bound to them and methods of coupling enzymes to surfaces are provided. Enzymes can include large and/or multiple surface coupling domains for surface coupling.
Abstract:
Methods of monitoring enzyme mediated reactions, and particularly nucleic acid synthesis reactions such as pyrosequencing methods that employ enzymatic reporter systems. The methods and systems provide elevated signal levels as compared to conventional pyrosequencing processes, and/or mediate de-phasing of sequencing analyses employing pyrosequencing or other "sequencing by synthesis" methods.